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Friction — Science STD 8 — Question

Gujarat BoardEnglish MediumSTD 8ScienceFriction1 Mark
MCQ
Friction can be reduced by:
  • A
    Polishing
  • B
    Oiling
  • C
    By use the ball bearing
  • ✓
    All of these.
✓

Answer

Correct option: D.
All of these.

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